import { act, fireEvent, render, screen } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { getFeaturedProjects } from "@/lib/portfolio-data";
import NotebookBrowser, { type NotebookBrowserProps } from "./NotebookBrowser";
import { selectNotebookProjects } from "./notebookProjects";

const projects = selectNotebookProjects(getFeaturedProjects(null));
const frame: NotebookBrowserProps["frame"] = {
  cursorVisible: true,
  cursorX: 0.4,
  cursorY: 0.6,
  cursorClicking: false,
};

function renderBrowser(overrides: Partial<NotebookBrowserProps> = {}) {
  return render(
    <NotebookBrowser
      projects={projects}
      activeIndex={0}
      frame={frame}
      onSelectTab={jest.fn()}
      {...overrides}
    />,
  );
}

function imageFor(container: HTMLElement, index: number) {
  const source = new URL(projects[index].screenshotSrc, document.baseURI).href;
  const image = Array.from(container.querySelectorAll("img")).find(
    (candidate) => candidate.src === source,
  );
  if (!image) throw new Error(`Missing screenshot for ${projects[index].id}`);
  return image;
}

describe("NotebookBrowser", () => {
  it("renders the active project as an accessible tabpanel", () => {
    renderBrowser({ activeIndex: 1 });

    expect(
      screen.getByRole("tablist", { name: /projetos em produção/i }),
    ).toBeInTheDocument();
    expect(screen.getAllByRole("tab")[1]).toHaveAttribute(
      "aria-selected",
      "true",
    );
    expect(screen.getByRole("tabpanel")).toHaveAccessibleName(
      /SC Plus Aquicultura/i,
    );
    expect(screen.getByRole("status")).toHaveTextContent(
      "Projeto ativo: SC Plus Aquicultura",
    );
  });
  it("keeps decoded content visible and ignores a superseded decode", async () => {
    const view = renderBrowser();
    await act(async () => {
      fireEvent.load(imageFor(view.container, 0));
    });
    expect(screen.getByRole("img")).toHaveAccessibleName(/NutriScan/i);

    view.rerender(
      <NotebookBrowser
        projects={projects}
        activeIndex={1}
        frame={frame}
        onSelectTab={jest.fn()}
      />,
    );
    let finishDecode!: () => void;
    imageFor(view.container, 1).decode = jest
      .fn()
      .mockResolvedValueOnce(undefined)
      .mockImplementation(
        () =>
          new Promise<void>((resolve) => {
            finishDecode = resolve;
          }),
      );
    await act(async () => {
      fireEvent.load(imageFor(view.container, 1));
    });
    expect(screen.getByRole("img")).toHaveAccessibleName(/NutriScan/i);

    view.rerender(
      <NotebookBrowser
        projects={projects}
        activeIndex={2}
        frame={frame}
        onSelectTab={jest.fn()}
      />,
    );
    await act(async () => {
      fireEvent.load(imageFor(view.container, 2));
    });
    expect(screen.getByRole("img")).toHaveAccessibleName(/SEV Moda Íntima/i);
    await act(async () => {
      finishDecode();
    });
    expect(screen.getByRole("img")).toHaveAccessibleName(/SEV Moda Íntima/i);
  });

  it("keeps the last capture with a truthful notice when the requested image fails", async () => {
    const view = renderBrowser();
    await act(async () => {
      fireEvent.load(imageFor(view.container, 0));
    });
    view.rerender(
      <NotebookBrowser
        projects={projects}
        activeIndex={1}
        frame={frame}
        onSelectTab={jest.fn()}
      />,
    );
    fireEvent.error(imageFor(view.container, 1));
    expect(screen.getByRole("img")).toHaveAccessibleName(/NutriScan/i);
    expect(
      screen.getByText(/não foi possível carregar.*SC Plus/i),
    ).toBeInTheDocument();
    expect(screen.getByRole("tabpanel")).toHaveAccessibleName(/SC Plus/i);
  });

  it("can reverse to an already-loaded outgoing image without another load event", async () => {
    const view = renderBrowser();
    const first = imageFor(view.container, 0);
    Object.defineProperties(first, {
      complete: { value: true },
      naturalWidth: { value: 1280 },
    });
    await act(async () => {
      fireEvent.load(first);
    });
    view.rerender(
      <NotebookBrowser
        projects={projects}
        activeIndex={1}
        frame={frame}
        onSelectTab={jest.fn()}
      />,
    );
    await act(async () => {
      fireEvent.load(imageFor(view.container, 1));
    });
    view.rerender(
      <NotebookBrowser
        projects={projects}
        activeIndex={0}
        frame={frame}
        onSelectTab={jest.fn()}
      />,
    );
    expect(
      await screen.findByRole("img", { name: /NutriScan/i }),
    ).toBeInTheDocument();
  });
  it("moves between tabs with arrow keys and Home/End", async () => {
    const user = userEvent.setup();
    const onSelectTab = jest.fn();
    renderBrowser({ onSelectTab });
    const tabs = screen.getAllByRole("tab");

    await user.click(tabs[1]);
    await user.keyboard("{ArrowRight}");
    await user.keyboard("{Home}");
    await user.keyboard("{End}");

    expect(onSelectTab).toHaveBeenNthCalledWith(1, 1);
    expect(onSelectTab).toHaveBeenNthCalledWith(2, 2);
    expect(onSelectTab).toHaveBeenNthCalledWith(3, 0);
    expect(onSelectTab).toHaveBeenNthCalledWith(4, projects.length - 1);
  });
  it("moves DOM focus with the active tab", async () => {
    const user = userEvent.setup();
    const tabs =
      renderBrowser().container.querySelectorAll<HTMLButtonElement>(
        '[role="tab"]',
      );

    tabs[0].focus();
    await user.keyboard("{ArrowRight}");

    expect(document.activeElement).toBe(tabs[1]);
  });

  it("removes the closed browser from the accessibility tree", () => {
    renderBrowser({ interactive: false });

    const browser = screen.getByTestId("notebook-browser");
    expect(browser).toHaveAttribute("aria-hidden", "true");
    expect(browser).toHaveAttribute("inert");
  });

  it("bounds arrow navigation at the first and last tab", async () => {
    const user = userEvent.setup();
    const onSelectTab = jest.fn();
    renderBrowser({ onSelectTab });
    const tabs = screen.getAllByRole("tab");

    await user.click(tabs[0]);
    await user.keyboard("{ArrowLeft}");
    await user.click(tabs.at(-1) as HTMLElement);
    await user.keyboard("{ArrowRight}");

    expect(onSelectTab).toHaveBeenNthCalledWith(2, 0);
    expect(onSelectTab).toHaveBeenNthCalledWith(4, projects.length - 1);
  });

  it("keeps an unknown demo link and announces its state", () => {
    const unknownProjects = projects.map((project, index) =>
      index === 0
        ? {
            ...project,
            demoAvailability: "unknown" as const,
            demoCheckedAt: null,
          }
        : project,
    );
    renderBrowser({ projects: unknownProjects });

    const link = screen.getByRole("link", {
      name: /abrir projeto.*disponibilidade não verificada/i,
    });
    expect(link).toHaveAttribute("href", projects[0].demoUrl);
    expect(link).toHaveAttribute("target", "_blank");
    expect(link).toHaveAttribute("rel", "noopener noreferrer");
  });

  it("renders an unavailable demo as non-navigable text", () => {
    const unavailableProjects = projects.map((project, index) =>
      index === 0
        ? {
            ...project,
            demoAvailability: "unavailable" as const,
            demoCheckedAt: "2026-09-04T12:00:00.000Z",
          }
        : project,
    );
    renderBrowser({ projects: unavailableProjects });

    const unavailable = screen.getByText(
      "Demo indisponível na última verificação",
    );
    expect(unavailable).toHaveAttribute("aria-disabled", "true");
    expect(unavailable.closest("a")).toBeNull();
    expect(
      screen.queryByRole("link", { name: /abrir projeto/i }),
    ).not.toBeInTheDocument();
  });

  it("renders no demo action for a project without a demo", () => {
    const noDemoProjects = [
      {
        ...projects[0],
        demoUrl: null,
        demoAvailability: "none",
        demoCheckedAt: null,
      },
    ] as unknown as NotebookBrowserProps["projects"];
    renderBrowser({ projects: noDemoProjects });

    expect(screen.queryByText(/abrir projeto/i)).not.toBeInTheDocument();
    expect(
      screen.queryByText("Demo indisponível na última verificação"),
    ).not.toBeInTheDocument();
  });

  it("uses the selected tab to label the panel and decoded screenshot", async () => {
    const view = renderBrowser({ activeIndex: 2 });
    await act(async () => {
      fireEvent.load(imageFor(view.container, 2));
    });

    const tab = screen.getAllByRole("tab")[2];
    const panel = screen.getByRole("tabpanel");
    const image = screen.getByRole("img");

    expect(tab).toHaveAttribute("aria-controls", panel.id);
    expect(panel).toHaveAttribute("aria-labelledby", tab.id);
    expect(image).toHaveAccessibleName(/SEV Moda Íntima/i);
    expect(image).toHaveProperty(
      "src",
      new URL(projects[2].screenshotSrc, document.baseURI).href,
    );
  });
});